柠檬酸三甲酯绿色增塑剂的合成与性能研究  

Study on the Synthesis and Properties of Acetylacetyl Citrate Trimethyl Ester

作　　者：钟俐 韦尚华 姚宁 于淑萍 王勇 ZHONG Li;WEI Shanghua;YAO Ning;YU Shuping;WANG Yong(School of Materials and Chemical Engineering,Zhengzhou University of Technology,Zhengzhou,Henan 450044,China;Henan Qing’an Chemical Technology R&D Co.Zhengzhou,Henan 451100,China)

机构地区：[1]郑州工程技术学院材料与化学工程学院,河南郑州450044 [2]河南庆安化工技术研发有限公司,河南郑州451100

出　　处：《中州大学学报》2025年第2期124-128,共5页Journal of Zhongzhou University

基　　金：河南省高等学校重点科研项目计划(24B150043);河南省高等学校大学生实践创新训练计划项目(202211068003,202311068A016);郑州工程技术学院校科研启动费(No.22037)。

摘　　要：以二乙烯酮和柠檬酸三甲酯为原料,通过酯加成法合成了一种新型的绿色增塑剂乙酰乙酰基柠檬酸三甲酯。研究了乙酰乙酰基柠檬酸三甲酯改善聚乳酸的可塑性、柔韧性和拉伸性等性质。实验结果表明,将新合成的乙酰乙酰基柠檬酸三甲酯增塑剂加入聚乳酸中的性能优于不添加增塑剂的聚乳酸和添加未改性的柠檬酸三甲酯的聚乳酸。从分解温度、玻璃化转变温度、耐抽出性和热老化等几个方面的性能进行对比,分析可知新合成的新型增塑剂具有更好的增塑效果、更耐高温程度、耐抽出性,且热老化程度更低。This article uses diethyl ketone and trimethyl citrate as raw materials to synthesize acetyl acetyl citrate trimethyl ester through ester addition method.It not only uses diethyl ketone as a substance to remove the active hydroxyl group of citrate trimethyl ester,but also generates acetyl acetyl citrate trimethyl ester,a new type of plasticizer.The main research focuses on acetyl citrate trimethyl ester to improve the plasticity,flexibility,and stretchability of polylactic acid.The main research focuses on acetyl citrate trimethyl ester to improve the plasticity,flexibility,and stretchability of polylactic acid.Therefore,the newly obtained acetyl citrate trimethyl ester plasticizer can be added to polylactic acid,and compared with polylactic acid without plasticizers and unmodified citrate trimethyl ester plasticizer.Their various properties can be determined.By analyzing and comparing the properties such as decomposition temperature,glass transition temperature,extraction resistance,and thermal aging,it can be concluded that the new plasticizer has better plasticizing effect,higher resistance to high temperatures,better resistance to extraction,and lower degree of thermal aging.

关 键 词：聚乳酸 柠檬酸三甲酯 二乙烯酮 绿色增塑剂 

分 类 号：TS255.36[轻工技术与工程—农产品加工及贮藏工程]